Arctic Sea Ice Continues Decline, Hits Second-Lowest Level

Last month the extent of sea ice covering the Arctic Ocean declined to the second-lowest extent on record. Satellite data from NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado in Boulder showed [...]

A greener way to keep flames away

Flame retardants are used to protect clothing and furniture from fire. But the chemicals are also used to fight forest fires: Special planes may dump thousands of gallons of flame retardants on a blaze to try to get it under control. Credit: [...]

A new poll on evolution and climate change

A new poll asked respondents about their views on evolution and climate change, what they regard the scientific consensus on those topics to be, and whether it matters to them whether candidates for president share their views. The poll (PDF) [...]

Shuttle Endeavour leaves space station forever

Endeavour and its crew of six departed the International Space Station late Sunday and headed home to wrap up NASA’s next-to-last shuttle flight. Endeavour and its crew of six left the International Space Station and headed home to close out [...]

Skylon space plane gets a thumbs-up

A space plane that can take off and land from conventional runways is one step closer to reality. Following a series of meetings in September 2010 at the International Space Innovation Center in Harwell, U.K., to look at the feasibility of [...]

‘Exciting’ find: Possible planets without orbits

So many lonely planets with no star to guide them. Are these planets without orbits? Our Galaxy may be full of worlds without a sun to call their own. Scattered about the Milky Way are floating, Jupiter-mass objects, which are likely to be planets [...]

Mysterious deep sea jets alter global climate

For the first time, scientists have discovered mysterious deep seat jets of water, which cause anomalies in wind, rainfall and sea temperature across the tropical Atlantic. Strange jets of water rising from deep in the ocean repeatedly trigger [...]

Lonely Rogue Worlds Surprisingly Outnumber Planets with Suns

Astronomers have discovered a whole new class of alien planet: a vast population of Jupiter-mass worlds that float through space without any discernible host star, a new study finds. Artist’s concept showing a free-floating planet with [...]

Is the Rocky Alien Planet Gliese 581d Really Habitable?

A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new atmospheric-modeling study have found that the planet likely lies [...]

Could this be site of Neanderthals’ last stand?

Tools found in frigid far north of Russia’s Ural Mountains suggest it may be A Neanderthal-style tool kit found in the frigid far north of Russia’s Ural Mountains dates to 33,000 years ago and may mark the last refuge of Neanderthals [...]